.video-wrapper {
  position: relative;
  width: 100%;
  margin: rem-calc(0 0 54.5);
  overflow: hidden;
}

.video-overlay {
  height: 100%;
  opacity: .8;
  position: absolute;
  width: 100%;
 z-index: 2;
}





.coverW {
  position: absolute;
  top: 66%;
  left: 0;
  right: 0;
  bottom: 0;
z-index: 100;
  width: 100%;
  text-align: center;
}


.tv {
  position: inherit;
  top: 0;
  left: 0;
z-index: 1;
  width: 100%;
  height: 100%;
  overflow: hidden;
}
.tv .screen {
  position: inherit;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
 z-index: 1;
  opacity: 0;
  transition: opacity .5s; 
  margin-top:-50px;
  margin-bottom:-50px;
   
}
.tv .screen.active {
  opacity: 1;
}